GB1212982A - Automatic flight controls - Google Patents
Automatic flight controlsInfo
- Publication number
- GB1212982A GB1212982A GB8376/67A GB837667A GB1212982A GB 1212982 A GB1212982 A GB 1212982A GB 8376/67 A GB8376/67 A GB 8376/67A GB 837667 A GB837667 A GB 837667A GB 1212982 A GB1212982 A GB 1212982A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signals
- altitude
- aircraft
- throttle
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000001133 acceleration Effects 0.000 abstract 2
- 230000003111 delayed effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/04—Control of altitude or depth
- G05D1/06—Rate of change of altitude or depth
- G05D1/0607—Rate of change of altitude or depth specially adapted for aircraft
- G05D1/0615—Rate of change of altitude or depth specially adapted for aircraft to counteract a perturbation, e.g. gust of wind
- G05D1/063—Rate of change of altitude or depth specially adapted for aircraft to counteract a perturbation, e.g. gust of wind by acting on the motors
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Navigation (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Abstract
1,212,982. Automatic control of aircraft. SPERRY RAND Ltd. Feb.20, 1968 [Feb.22, 1967], No.8376/67. Heading G3R. In a system in which an aircraft is caused to follow a predetermined flight path by automatic control of throttle and elevator, engine thrust is also varied automatically in dependence on a timelagged forward acceleration signal. As applied to an aircraft which is being automatically controlled to maintain a constant altitude or to follow a glide path, airspeed is maintained constant by a signal from an airspeed meter 15, Fig.2, which controls an engine throttle servo 11 through a long term proportional plus integral controller. Short term variations of forward speed, e.g. due to gusts, are detected by a longitudinal accelerometer 12, signals from which are compensated for the effect of change of pitch by subtracting signals from a gyro vertical 16 so that true acceleration signals are delayed at 18 and applied in direct proportional to throttle servo 11 to increase thrust and correct a fall in altitude due to a following wind, for example. Signals from gyro 16 in response to pitch altitude changes are also effective to control throttle servo 11 through a circuit 19 having a smaller delay. Systems without speed or altitude control are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8376/67A GB1212982A (en) | 1967-02-22 | 1967-02-22 | Automatic flight controls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8376/67A GB1212982A (en) | 1967-02-22 | 1967-02-22 | Automatic flight controls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1212982A true GB1212982A (en) | 1970-11-18 |
Family
ID=9851348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8376/67A Expired GB1212982A (en) | 1967-02-22 | 1967-02-22 | Automatic flight controls |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1212982A (en) |
-
1967
- 1967-02-22 GB GB8376/67A patent/GB1212982A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |